Flowline manufactures high-quality measurement and control instruments for chemical distributors, municipalities, energy or food suppliers and other industrial manufacturers to ensure workplace safety and protect the environment. Read More






Test Instruments


Pumps Filter

Float Switches

Float switches get activated by a floating device (level sensors) on detecting changes in the liquid level. Can control the connected equipment like motors.

  • Level Switch
  • Level Switch

Level Switch

Item (4)

Liquid Level Switches and Controllers

Include ultrasonic level switches, optic leak detectors, capacitance level switches, USB hubs, vertical buoyancy switches, vibration level switches and more.

Ultrasonic Level Switch Side Mounted Polypropylene
Item: AA4MFY
Model: AU13-1120
A$1,366.40 /unit (inc. GST)
Add To Cart


Item: CE9CRZ
Model: LI99-2001
A$112.00 /unit (inc. GST)
Add To Cart
Optic Leak Detector Universal Polypro
Item: AA4MET
Model: LO10-1305
A$392.01 /unit (inc. GST)
Add To Cart
Vertical Buoyancy Switch Universal Polypropylene
Item: AA4MEW
Model: LV10-1301
A$268.81 /unit (inc. GST)
Add To Cart
Vibration Level Switch Universal Ryton
Item: AA4MEX
Model: LZ12-1405
A$683.20 /unit (inc. GST)
Add To Cart
Capacitance Level Switch Universal Polypropylene
Item: AA4MEY
Model: LP15-1405
A$593.59 /unit (inc. GST)
Add To Cart

Noncontact Level Sensors

Include noncontact ultrasonic level sensors used to measure the level of liquids in tanks, reservoirs or other containers by emitting an ultrasonic pulse that travels through the air & reflects off the liquid surface to the sensor.

Ultrasonic Level Transmitter 18.0 Feet
Item: AA4MFJ
Model: LU81-5101
A$1,892.79 /unit (inc. GST)
Add To Cart
Ultrasonic Level Transmitter 26.2 Feet
Item: AA4MFT
Model: XP88-00
A$3,830.40 /unit (inc. GST)
Add To Cart
Noncontact Radar Level Sensor
Item: CE9UQC
Model: LR20-0310-30
A$6,272.00 /unit (inc. GST)
Add To Cart

Optical Liquid Sensors

Level sensors installed in the interstitial space between the inner and outer walls of the tank for detecting the presence of liquid in this space and subsequently indicate a potential leak.

Leak Detection Switch Interstitial Horizontal
Item: AA4MFV
Model: LH29-1001
A$591.36 /unit (inc. GST)
Add To Cart

About Flowline

The company's product catalogue includes liquid and solid-level transmitters, ultrasonic sensors, level switches, controllers & indicators, fittings & enclosures and parts & accessories. Flowline's level switches offer reliable liquid-level detection in reservoirs and tanks and allow pump automation to drain excess liquid out of the system. They are made from polypropylene and PVC, which makes them lightweight & submersible, as well as safe to use with harsh and corrosive liquids. They are compatible with different counterweight and cable hanger installations to provide an accurate pivot point for these floats when submerged completely in liquid.

Things To Consider

Cross-Reference Alternatives

Flowline MPNs cross individual references to the equivalent Honeywell and Madison level switches and sensors. So, if you're looking for a competitor item that is either out of stock or obsolete, chances are Raptor Supplies has the equivalent Flowline products available.

Why Us?

Raptor Supplies offers a complete range of Flowline products. We can recommend suitable products for your diverse application requirements.


These Flowline products range from small to large sizes. They may require careful packaging as some items might get damaged while shipping. Hence, these Flowline items are delivered by courier shipment and air freight for minimum downtime.

Major Trade Names

Flowline Competitive Advantages

Flowline Filter Housing

This filter housing is made of stainless steel, making it suitable for various industrial, commercial and OEM applications. It has fabricated construction with a cover opening that can easily adapt to different piping layouts. Its adjustable mounting legs allow easy installation and the integral cover handle makes it easier to open / close the cover. The housing is available in carbon steel and Type 304 / 316 stainless steel materials for use in corrosive environments and has smooth, bead-blasted finish to allow easy cleaning of the interior.

Frequently Asked Questions

What is the use of an ultrasonic sensor?

An ultrasonic liquid sensor is an instrument used for measuring the height of a liquid and converting it to an electrical signal. The signal output is then utilised via supporting instruments to display, monitor, log or control the liquid level.

What is meant by a dead band?

Dead band is the air gap distance in front of the transducer that a sensor cannot measure.

What is the advantage of using pulse radar in non-contact sensors?

Pulse radar measures powders, grains, aggregates, building materials or pellets in silo, bin, stockpile, crusher or transfer station applications. It is also unaffected by process conditions, like dust, material build-up or temperature that cause other sensing technologies to fail.